/Engine/Source/Developer/DesktopPlatform/Public/IDesktopPlatform.h
Cleans a game project. Removes the intermediate folder and binary build products.
bool CleanGameProject ( const [FString](API\Runtime\Core\Containers\FString) & ProjectDir, [FString](API\Runtime\Core\Containers\FString) & OutFailPath, [FFeedbackContext](API\Runtime\Core\Misc\FFeedbackContext) * Warn )